1 year

100 years

1 month

10 years

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

a nerve

all of the above

spinal cord

brains

telegraph

proteins

hormonal

electrical impulses

prison cells

stem cells

glial cells

muscle cells

150 meters per second

1 meter per second

1 foot per second

100 miles per hour

Purkinje neurons

pyramidal neurons

bipolar neurons

multipolar neurons

the brain

muscle

wire

nerve

stem cells

muscle cells

liver cells

skin cells